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Field notes from production AI.

Long-form essays from the engineers shipping AI inside payers, hospitals, energy operators and proptech platforms. Written for technology leaders who care more about what runs in production than what trended last week.

All essays

Field notes, sorted by recency.

1939 essays
PRODUCT ENGINEERING Legacy SystemIntegration UnderAudit. Legacy system integration Under Audithelps CTO / VP Engineering leaders test… PLAN BUILD MEASURE IMPROVE LEGACY
Insights ·

Legacy System Integration Under Audit

Legacy system integration Under Audit helps CTO / VP Engineering leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
AI GOVERNANCE A Buyer'S Guide toPII RedactionPipelines. A Buyer's Guide to PII redactionpipelines helps enterprise leaders… DESIGN SHIP OBSERVE REFINE BUYER
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A Buyer'S Guide to PII Redaction Pipelines

A Buyer's Guide to PII redaction pipelines helps enterprise leaders connect per-entity recall, utility loss, re-identification through context, placement in the flow, and reversibility to redaction that holds where it matters. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

12 min read↗
APPLIED AI Agent ToolCalling UnderAudit. Agent tool calling Under Audit helps AIleaders connect tool registry… ARCHITECTURE SECURITY RELIABILITY COST AGENT TOOL
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Agent Tool Calling Under Audit

Agent tool calling Under Audit helps AI leaders connect tool registry, selection, argument, authorisation gate, and execution to controlled tool execution. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
PRODUCT ENGINEERING A Buyer'S Guide toStrangler-FigMigration. A Buyer's Guide to Strangler-figmigration helps CTO / Head of AI leaders… 01 Pilot 02 Team 03 Org 04 Scale BUYER STRANGLER
Insights ·

A Buyer'S Guide to Strangler-Fig Migration

A Buyer's Guide to Strangler-fig migration helps CTO / Head of AI leaders connect capability boundary, traffic interception, data authority, dual-run validation, and decommission criteria to reliable production outcomes. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
AI GOVERNANCE A Buyer'S Guide toAcceptable UsePolicy Design. A Buyer's Guide to Acceptable use policydesign helps enterprise leaders connect… ASSESS ADOPT OPTIMIZE GOVERN
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A Buyer'S Guide to Acceptable Use Policy Design

A Buyer's Guide to Acceptable use policy design helps enterprise leaders connect followable rules, named data categories, sanctioned alternatives, enforcement placement, and review cadence to a policy people can actually comply with. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

12 min read↗
PRODUCT ENGINEERING What Technical DueDiligence ActuallyCosts. The cost of technical due diligenceincludes engineering, controls… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
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What Technical Due Diligence Actually Costs

The cost of technical due diligence includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
QUALITY ENGINEERING What ContractTesting for ModelAPIs Actually Costs. The cost of model api contract testingincludes engineering, controls… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

What Contract Testing for Model APIs Actually Costs

The cost of model api contract testing includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
CLOUD & DEVOPS Disaster Recoveryfor Model ServicesUnder Audit. Disaster recovery for model servicesUnder Audit helps platform leaders… 01 Scope 02 Build 03 Launch 04 Iterate
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Disaster Recovery for Model Services Under Audit

Disaster recovery for model services Under Audit helps platform leaders connect RTO, RPO, failover, artefacts, and tests to defensible model recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
AI GOVERNANCE IP Provenance forAI Code UnderAudit. A Buyer's Guide to IP provenance for AIcode Under Audit helps CTO / General… ASSESS ADOPT OPTIMIZE GOVERN
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IP Provenance for AI Code Under Audit

A Buyer's Guide to IP provenance for AI code Under Audit helps CTO / General Counsel evaluate code provenance, licence review, generation records, human review, release evidence. Learn the controls, buying criteria, implementation approach, pitfalls, and production signals.

16 min read↗
INSIGHTS Kubernetes Operatorsfor Technology &SaaS. Operators are the right abstraction whena resource has real lifecycle logic that… 01 Ad hoc 02 Managed 03 Defined 04 Optimized KUBERNETES OPERATORS
Insights ·

Kubernetes Operators for Technology & SaaS

Operators are the right abstraction when a resource has real lifecycle logic that many teams need. Most of the time a Helm chart is enough, and writing one anyway costs you a maintainer.

15 min read↗
DATA ENGINEERING Data Quality SLAsUnder Audit. Data quality SLAs Under Audit helps dataleaders connect metrics, thresholds… MODEL DEPLOY MONITOR ITERATE DATA
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Data Quality SLAs Under Audit

Data quality SLAs Under Audit helps data leaders connect metrics, thresholds, owners, incidents, and evidence to defensible data service levels in production. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
PLATFORM ENGINEERING What Infrastructureas Code for MLActually Costs. The cost of ml infrastructure as codeincludes engineering, controls… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
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What Infrastructure as Code for ML Actually Costs

The cost of ml infrastructure as code includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
PLATFORM ENGINEERING What KubernetesMulti-TenancyActually Costs. The cost of kubernetes multi-tenancyincludes engineering, controls… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

What Kubernetes Multi-Tenancy Actually Costs

The cost of kubernetes multi-tenancy includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
TECHNOLOGY Service Mesh in 2026for Technology &SaaS. Service Mesh helps SaaS engineeringteams connect mutual authentication… STRATEGY DELIVERY GOVERNANCE SCALE SERVICEMESH
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Service Mesh in 2026 for Technology & SaaS

Service Mesh helps SaaS engineering teams connect mutual authentication, traffic policy, observability, operational cost, and the problem being solved to a decision that used to be harder than it is now. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

12 min read↗
QUALITY ENGINEERING What Acceptance Criteriafor Probabilistic OutputActually Costs. Probabilistic-output acceptance criteriacarries engineering, control, operating… 100% EFFORT MIX Planning 32% Delivery 26% Testing 24% Support 18%
Insights ·

What Acceptance Criteria for Probabilistic Output Actually Costs

Probabilistic-output acceptance criteria carries engineering, control, operating, change, recovery, and exit costs that teams must model before scaling. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
TECHNOLOGY Shadow AI: TheDeployment YouDidn'T Approve. Shadow AI helps enterprise leadersconnect unsanctioned tool use, data… STRATEGY DELIVERY GOVERNANCE SCALE SHADOW AI
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Shadow AI: The Deployment You Didn'T Approve

Shadow AI helps enterprise leaders connect unsanctioned tool use, data exposure, discovery methods, sanctioned alternatives, and policy realism to the AI already running in the organisation. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

12 min read↗
PLATFORM ENGINEERING What SecretsManagement forAgents ActuallyCosts. The cost of agent secrets managementincludes engineering, controls… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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What Secrets Management for Agents Actually Costs

The cost of agent secrets management includes engineering, controls, operations, change, recovery, and exit work that enterprise teams must keep funding. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
PLATFORM ENGINEERING What API Gatewaysfor Machine ClientsActually Costs. API gateways for machine clients carriesengineering, control, operating, change… 100% EFFORT MIX Build 32% Integrate 26% Secure 24% Operate 18%
Insights ·

What API Gateways for Machine Clients Actually Costs

API gateways for machine clients carries engineering, control, operating, change, recovery, and exit costs that enterprise teams must model before scaling. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
TECHNOLOGY Data Productsfor Retail. A dataset becomes a data product when ithas an owner, an SLA, and someone who… PLAN BUILD MEASURE IMPROVE DATA
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Data Products for Retail

A dataset becomes a data product when it has an owner, an SLA, and someone who would complain if it broke. Without those three, you have a table with a nice name.

14 min read↗
TECHNOLOGY AI Data Catalogsfor Technology &SaaS. AI Data Catalogs help SaaS data teamsconnect automated harvesting, generated… 01 Scope 02 Build 03 Launch 04 Iterate
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AI Data Catalogs for Technology & SaaS

AI Data Catalogs help SaaS data teams connect automated harvesting, generated descriptions, ownership surfacing, duplicate detection, and usage signals to the question analysts across many teams actually ask. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

13 min read↗
CLOUD & DEVOPS What Private ModelHosting ActuallyCosts. What Private model hosting ActuallyCosts helps leaders see the engineering… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
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What Private Model Hosting Actually Costs

What Private model hosting Actually Costs helps leaders see the engineering, control, change, and risk costs behind the first implementation in production. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

17 min read↗
CLOUD & DEVOPS Data CataloguesUnder Audit. Data catalogues Under Audit helps dataleaders connect owners, definitions… 100% EFFORT MIX Strategy 32% Engineering 26% Governance 24% Enablement 18%
Insights ·

Data Catalogues Under Audit

Data catalogues Under Audit helps data leaders connect owners, definitions, freshness, usage, and evidence to defensible metadata governance in production. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
TECHNOLOGY Enterprise AI Search:From Ten Blue Links toOne Grounded Answer. Enterprise AI Search helps leadersconnect retrieval quality, permission… 01 Discover 02 Prototype 03 Harden 04 Roll out
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Enterprise AI Search: From Ten Blue Links to One Grounded Answer

Enterprise AI Search helps leaders connect retrieval quality, permission enforcement, source attribution, stale content, and answer confidence to a system that answers without leaking or inventing. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

12 min read↗
DATA ENGINEERING Schema EvolutionUnder Audit. Schema evolution Under Audit helps CDO /VP Data leaders test controls, evidence… ARCHITECTURE SECURITY RELIABILITY COST SCHEMAEVOLUTION
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Schema Evolution Under Audit

Schema evolution Under Audit helps CDO / VP Data leaders test controls, evidence, ownership, failure handling, and recovery. Learn the 2026 operating model, components, pitfalls, signals, and implementation steps.

16 min read↗
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